Global Patent Index - EP 1914393 A3

EP 1914393 A3 20140709 - Steam valve and steam turbine plant

Title (en)

Steam valve and steam turbine plant

Title (de)

Dampfventil und Dampfturbinenanlage

Title (fr)

Soupape de vapeur et turbine à vapeur

Publication

EP 1914393 A3 20140709 (EN)

Application

EP 07020202 A 20071016

Priority

JP 2006283752 A 20061018

Abstract (en)

[origin: EP1914393A2] A steam valve (2) has: a valve casing (5); a valve seat (8); a main valve body (14) slidable to abut to or to detach from the valve seat; a bypass valve body (15) slidably disposed in the main valve body; a cylindrical flow guide (21) surrounding the annular wall (16) of the bypass valve body; and a strainer (9) surrounding the main valve body and the flow guide. The bypass valve body has a steam passage (18) and the annular wall that protrudes out of the main valve body when the bypass valve body is in an open position. The annular wall has steam inlet ports (17). The flow guide guides steam from outside to flow through a space between the annular wall and the flow guide so as to admit steam into the steam passage in the bypass valve body through whole peripheral part of the annular wall.

IPC 8 full level

F01D 17/10 (2006.01)

CPC (source: EP US)

F01D 17/10 (2013.01 - EP US); F05D 2220/31 (2013.01 - EP US); Y10T 137/7837 (2015.04 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 1914393 A2 20080423; EP 1914393 A3 20140709; EP 1914393 B1 20150715; CN 101165319 A 20080423; CN 101165319 B 20110824; JP 2008101516 A 20080501; JP 4776494 B2 20110921; US 2008251140 A1 20081016; US 7784279 B2 20100831

DOCDB simple family (application)

EP 07020202 A 20071016; CN 200710166819 A 20071018; JP 2006283752 A 20061018; US 90582107 A 20071004